The following links provide information on preparing and submitting proposals to various agencies:
NSF Proposal and Award Policies and Procedures Guide - document outlining requirements for submitting proposals to the National Science Foundation.
NIH Application and Electronic Submission Information - provides application guidelines for preparing and submitting proposals to the National Institutes of Health.
Grants.gov - the source to find and apply for federal government grants.
FastLane - the National Science Foundation (NSF) website for researchers and potential researchers, reviewers, and research administrators and their organizations.
eRA Commons - a virtual meeting place where NIH extramural grantee organizations, grantees, and the public can receive and transmit information about the administration of biomedical and behavioral research.